Framing




Deck Builders
Watch the first of our deck design video series. Here are the three products in the video. Enjoy!



Beam Span Chart Table

Use decks.com beam sizing calculator.

 Beam Sizes (Based on No. 2 or better Ponderosa Pine and Southern Pine Treated for weather and/or ground exposure)

X = Joist Length

X Species         Post Spacing            
  4' 5' 6' 7' 8' 9' 10' 11' 12' 13' 14'
6' SYP 1-2x6 1-2x6 1-2x6 2-2x6 2-2x6 2-2x6 2-2x8 2-2x8 2-2x10 2-2x10 2-2x10
  P P 1-2x6 1-2x6 2-2x8 2-2x8 2-2x8 2-2x8 2-2x10 2-2x10 2-2x12 2-2x12 3-2x10
7' SYP 1-2x6 1-2x6 1-2x6 2-2x6 2-2x6 2-2x8 2-2x8 2-2x10 2-2x10 2-2x10 2-2x12
  P P 1-2x6 1-2x6 1-2x8 2-2x8 2-2x8 2-2x10 2-2x10 2-2x10 2-2x12 3-2x10 3-2x10
8' SYP 1-2x6 1-2x6 2-2x6 2-2x6 2-2x8 2-2x8 2-2x8 2-2x10 2-2x10 2-2x12 2-2x12
  P P 1-2x6 2-2x6 2-2x8 2-2x8 2-2x8 2-2x10 2-2x10 2-2x10 3-2x10 3-2x10 3-2x12
9' SYP 1-2x6 1-2x6 2-2x6 2-2x6 2-2x8 2-2x8 2-2x10 2-2x10 2-2x12 2-2x12 3-2x10
  P P 1-2x6 2-2x6 2-2x8 2-2x8 2-2x10 2-2x10 2-2x10 3-2x10 3-2x10 3-2x12 3-2x12
10' SYP 1-2x6 1-2x6 2-2x6 2-2x6 2-2x8 2-2x8 2-2x10 2-2x12 2-2x12 3-2x10 3-2x10
  P P 1-2x6 1-2x6 2-2x8 2-2x8 2-2x10 2-2x10 2-2x12 3-2x10 3-2x12 3-2x12 Eng Bm
11' SYP 1-2x6 2-2x6 2-2x6 2-2x8 2-2x8 2-2x10 2-2x10 2-2x12 2-2x12 3-2x10 3-2x12
  P P 2-2x6 2-2x6 2-2x8 2-2x8 2-2x10 2-2x12 2-2x12 3-2x10 3-2x12 3-2x12 Eng Bm
12' SYP 1-2x6 2-2x6 2-2x6 2-2x8 2-2x8 2-2x10 2-2x10 2-2x12 3-2x10 3-2x10 3-2x12
  P P 2-2x6 2-2x6 2-2x8 2-2x10 2-2x10 2-2x12 2-2x12 3-2x12 3-2x12 Eng Bm Eng Bm
13' SYP 1-2x6 2-2x6 2-2x6 2-2x8 2-2x8 2-2x10 2-2x10 2-2x12 3-2x10 3-2x12 3-2x12
  P P 2-2x6 2-2x6 2-2x8 2-2x10 2-2x12 2-2x12 2-2x12 3-2x12 3-2x12 Eng Bm Eng Bm
14' SYP 1-2x6 2-2x6 2-2x6 2-2x8 2-2x10 2-2x10 2-2x12 3-2x10 3-2x12 3-2x12 3-2x12
  P P 2-2x6 2-2x8 2-2x8 2-2x10 2-2x12 3-2x10 3-2x12 3-2x12 Eng Bm Eng Bm Eng Bm
15' SYP 2-2x6 2-2x6 2-2x8 2-2x8 2-2x10 2-2x12 2-2x12 3-2x10 3-2x12 3-2x12 Eng Bm
  P P 2-2x6 2-2x8 2-2x8 2-2x10 3-2x10 3-2x10 3-2x12 3-2x12 Eng Bm Eng Bm Eng Bm
16' SYP 2-2x6 2-2x6 2-2x8 2-2x8 2-2x10 2-2x12 2-2x12 3-2x10 3-2x12 3-2x12 Eng Bm
  P P 2-2x6 2-2x8 2-2x10 2-2x10 3-2x10 3-2x10 3-2x12 3-2x12 Eng Bm Eng Bm Eng Bm

Joist sections cantilevered over beams must be calculated as (2x length) for beam sizing.

SYP= Southern Yellow Pine

P P= Ponderosa Pine